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v3.5.0
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@mtranter mtranter released this 23 Jul 22:57
· 3 commits to main since this release
v3.5.0
d250c19
  • Breaking change to ifNotExists API. Previously, a set operation could take an ifNotExists call with a single parameter:
table.set(key, { someValue: ifNotExists('1') })

This API, while simple, was a tad limiting. In this case, it checked for the existence of the "someValue" property on the object being updated. However, there are cases where you may wish to set someValue based on the existence of another property. This change makes this possible.

table.set(key, { someValue: ifNotExists('someOtherValue', '1') })

This API will typecheck the first parameter to ensure it exists on our object. Dot notation can be used e.g.

table.set(key, { someValue: ifNotExists('parent.child.someOtherValue', '1') })

Dot notation params will also be type checked.

  • An addition of mathematical expressions for Set functions.
table.set(key, { someNumberValue: plus('someNumberValue', 1) })
table.set(key, { someNumberValue: minus('someNumberValue', 1) })

Dot notation can also be used to identify the attribute to be updated. Also typechecked.

ifNotExists calls can be nested within the mathematical expressions

table.set(key, { someNumberValue: plus(ifNotExists('someNumberValue',0), 1) })
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